A PSU, or Power Supply Unit, is a device that provides electrical power to a computer or other electronic devices. It is responsible for converting the AC power from a wall outlet into the DC power needed by the computer's internal components. The PSU typically consists of a metal case with a fan, various cables, and connectors that attach to the computer's internal components. It also includes safety features to protect against electrical faults and overloading. The PSU is essential to the proper functioning of a computer or electronic device.
A power supply unit (PSU) is a component of a computer that converts AC (alternating current) power from a wall outlet to DC (direct current) power that can be used by the computer's components. The PSU is responsible for providing power to all components in the computer, including the motherboard, CPU, graphics card, and other peripherals.
Power supplies can come in a variety of wattage ratings, typically ranging from 300W to 1600W or higher. The wattage needed will depend on the components being used, with more powerful CPUs and graphics cards requiring a higher wattage power supply.
Power supplies can also come in different modular configurations. Non-modular PSUs have a fixed set of cables that cannot be removed, while semi-modular and fully modular PSUs allow the user to remove and add cables as needed. This can help with cable management and making a PC build look cleaner and more organized.
Some power supplies also come with a zero-RPM mode, where the fan does not spin unless the power demand is above a certain threshold. This can help reduce noise levels when the computer is not under heavy load.
Efficiency ratings are also important to consider when choosing a power supply. Efficiency ratings range from 80+ (bronze) to 80+ Platinum, with higher ratings indicating a more efficient power supply.
Main brands for power supplies include Corsair, EVGA, Seasonic, Thermaltake, and Cooler Master, among others.
